Reputation: 111

Java programing problem

I have a Java program that requires me to create two arrays and a condition.

In that condition I have to decide if the program should continue running or not.The problem is that I don't know how to stop the program from running if the condition is not respected.

Can anyone tell me how and also how can I create a Scanner that lets me introduce the elements of an array?

Upvotes: 2

Answers (5)

Sean Patrick Floyd

Reputation: 299208

A simple (mono threaded) Java Program will run until it has no more statements to execute or until it encounters a return statement in the main method.

Make sure, when your condition is false, to either a) just return, or b) to have your actual code in an if or else block.

public static void main(String[] args){
    if(someCheck){
        return;
    }
    // actual code here
}

public static void main(String[] args){
    if(someCheck){
        // actual code in here
    }
    // program ends here
}

Upvotes: 4

user425367

Reputation:

As many have already pointed out System.exit(0) is the way to terminate your application. So you have two arrays.

Pseudo code

loop thru array1
 if(array1[i] != condition)
  System.exit(0)
loop thru array2
 if(array2[i] != condition)
  System.exit(0)

Upvotes: 1

Flexo - Save the data dump

Reputation: 88801

if (condition) {
   System.exit(0)
}

This will make your program exit when condition is true. exit is a static method on java.lang.System You can return other values than 0 to signal the status of the exit as appropriate.

Upvotes: 2